Jacques rocheleau



(No Model.)

. J'. ROGHELEAU 7 DOOR BELL.

No. 429,643. Patented June 10, 1890.

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H IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII UNITED STATES- PATENT OFFICE.

JACQUES ROCHELEAU, OF WVINDSOR, ONTARIO, CANADA.

DOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 429,643, dated une 10, 1890.

Application filed November 29, 1889. Serial No. 331,945. (No model.)

To ml} whom it may concern:

Be it known thatI, JACQUES ROCHELEAU, a citizen of Canada, residing at Windsor, in the county of Essex and Province of Ontario,

Canada, have invented a new and useful Door-Bell, of which the following is a specification.

This improvement relates to that class of door-bells in which the hammer is operated by a gearing similar to aclock-alarm; and the invention consists in the peculiar construction, arrangement, and combination ofparts hereinafter more fully described, and then definitely pointed out in the claims.

In the accompanying drawings Figure 1 shows one of my bells attached to the casing of a door with the bell and door-jamb in-section; Fig. 2, a detail showing a plan of the lever. Figs. 3 and 4 are details showing different Views of the stop.

Referring now to the details of the drawings, A represents the jamb of a door, and B a base, preferably of cast-iron, by which it is attached to the jamb by means of screws C. To this base is attached the frame of the train of gearing by screws 0. of two plates D D, connected by posts E in the usual manner. Between this frame is set the train of gearing, consisting of a central arbor F, carrying the gong G, springH,spurwheel I, ratchet-wheel J, ratchet-j, and spring K, in a manner well understood, and therefore unnecessary to further describe, except to state that the ratchet-wheel is fast on the arbor, while the spur-wheel is loose thereon. The spur-wheel I gives motion to another wheel L through the pinion Z, and the wheel L in its turn gives motion through the pinion on to escape-wheel M, which operates the pallets N of the hammer n, all in the usual manner of operating alarm mechanism.

The stop device (see Fig. 3) consists of an arm 0 on a collar P, surrounding the bar 10, on which is a spiral spring Q. The arm 0 slides in a groove or slot 0' in a stud R, attached to the plate D. Y

Pivot-ed at S is a lever T, whose short arm has an incline or cam t, which,when the lever is moved in one direction, runs between the plate D and collar P andraises the latter against the pressure of the spring Q, which always tends to keep said collar pressed toward the plate D, in which last position the This frame consists.

arm O presses against the arm n and thus prevents any movement thereof until said arm 0 is moved away from the arm n.

At U is shown a spiral spring having one end attached to a stud V 011 the plate D and its other end connected to the lever T and acting to draw the cam away from between the plate D and collar P.

On the outside of the door-jamb is shown a button XV on the'outer end of a rod X,whose other end is in contact with the bar 19, so that by pushing on the button WV the bar 19 is moved inward, carrying the arm 0 away from the arm n, and thus, it the spring has been wound up, operating the hammer by means of the spring and train of gearing in the usual manner of operating alarm mechanisms.

The lever T may be connected by wire with any other part of the hall or any other room in the building, so as to be operated from that point, if desired; ora stringer wire may beconnected to it and carried to the other side of the door-frame and be fastend there, so that any attempt to open the door would press on said wire or cord and cause it to operate the lever T, and thus give motion to the alarm mechanism.

The gong is fast on the arbor F, so that by turning the gong the spring is wound up; but, if preferred, the gong may be a fixture and the spring wound up by any well-known.

means.

That I claim as new is 1. The combination, with a gong and its supporting-frame, of a hammer and a spring mechanism for operating the same, a collar P, having arm 0, a support for said collar P, and the beveled lever T for raising said collar and thus liberating the alarm mechanism, substantially as described.

2. The combination, with a gong and its supporting-frame, of a hammer and a spring mechanism for operating the same, the grooved stud R, attached to the frame, a bar p, spiral spring Q and collar P, both on said bar, arm 0. working in a groove 4" in said stud R, and a lever t for moving the collar and liberating the alarm mechanism, substantially as described.

JACQUES ROCHELEAU. Witnesses:

MALooLM'G. CAMPBELL, EDMUND I. SoULLY.

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